To maximize the compatibility with different fork steerers, bikes and frames, the upper and lower parts of ACROS headsets are being offered separately in a great variety of dimensions.

The integrated ACROS Ai-42 Headset Lower Part features the established seal technologies from ACROS and high-end bearings in stainless quality.
Precisely manufactured angular contact bearings made of stainless steel form the heart of the Ai-42 and offer play-free and smooth steering characteristics for a long time.

The name ACROS Ai-42 describes the integrated (also known as drop in) 1 1/8" Ahead headset for frames with a 42 mm headtube. The S.H.I.S. denotation (see attachment) of the lower part offered here is IS42/30.

Symbolic picture: Details of the pictured headset may differ slightly in appearance.

From 100,00 € order value the delivery inbound Germany is free of shipping costs. In case of cash on delivery (only inside Germany) we charge a cash on delivery fee of 3,50 EUR. Apart from the complete shipment price Deutsche Post AG charges an additional charge of 2,00 EUR for every cash on delivery.

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Please note that our provided times of delivery allow for a complete shipment and the delivery to the address provided by you. It also includes the time of sourcing your items in case they are out of stock. The provided time of delivery refers to a delivery within Germany. Deliveries to foreign countries means longer times of delivery.In the event of you ordering items with different times of delivery, please note that the order will leave our warehouse once complete. Choosing the payment method "Cash in advance" also prolongs the time of delivery. We will only ship your order once the full amount has been payed to our accounts and can be confirmed by our accounts department. Please note the extended delivery time for shipments outside of Germany. The notification "delivery date unknown" means, that the items might me out of stock or unreliable in terms of availability. In that case we do advise you to maybe choose another item out of the bike24 range. More regarding terms of delivery.